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Dimethoxytrityl, often abbreviated DMT, is a protecting group widely used for protection of the 5'-hydroxy group in nucleosides, particularly in oligonucleotide synthesis. [1] It is usually bound to a molecule, but can exist as a stable cation in solution, where it appears bright orange. [2]
Dimethoxytrityl, [bis-(4-methoxyphenyl)phenylmethyl] (DMT) — Removed by weak acid. DMT group is widely used for protection of 5'-hydroxy group in nucleosides, particularly in oligonucleotide synthesis. Methoxytrityl [(4-methoxyphenyl)diphenylmethyl] (MMT) – Removed by acid and hydrogenolysis.
The protection of the exocyclic amino groups must be orthogonal to that of the 5'-hydroxy group because the latter is removed at the end of each synthetic cycle. The simplest to implement and hence the most widely accepted is the strategy where the exocyclic amino groups bear a base-labile protection. Most often, two protection schemes are used.
The DMT group is removed with a solution of an acid, such as 2% trichloroacetic acid (TCA) or 3% dichloroacetic acid (DCA), in an inert solvent (dichloromethane or toluene). The orange-colored DMT cation formed is washed out; the step results in the solid support-bound oligonucleotide precursor bearing a free 5'-terminal hydroxyl group.
NBoc-DMT, or NB-DMT, also known as N1-tert-butoxycarbonyl-N,N-dimethyltryptamine, is a serotonergic psychedelic of the tryptamine family. [1] [2] It is a novel designer and recreational drug and is a synthetic modification of dimethyltryptamine (DMT) with an N′-tert-butyloxycarbonyl (NBoc) group.
Later analysis tentatively found 5-MeO-DMT in stems, leaves and roots; DMT, NMT and 5-MeO-DMT were tentatively observed in seeds, but follow-up tests were negative. [ 9 ] [ 53 ] Bark contains unidentified alkaloids [ 54 ] Bark in one sample subsequently found to contain an alkaloid which has an Rf value suggesting DMT.
This is an overview of the legality of ayahuasca by country.DMT, one of the active ingredients in ayahuasca, is classified as a Schedule I drug under the United Nations 1971 Convention on Psychotropic Substances, meaning that international trade in DMT is supposed to be closely monitored; use of DMT is supposed to be restricted to scientific research and medical use.
6-MeO-DMT, or 6-methoxy-N,N-dimethyltryptamine, also known as 6-OMe-DMT, is a serotonergic drug of the tryptamine family. [ 1 ] [ 2 ] It is the 6- methoxy derivative of the serotonergic psychedelic N , N -dimethyltryptamine (DMT) and is a positional isomer of the serotonergic psychedelic 5-MeO-DMT .